Whenever frightened, this small hatchling rolls up tight, forming an impenetrable ball. The thick plating that grows along the backs of sarvains acts like armor, giving these tiny creatures constant protection, which is quite necessary given their size. During the daytime, these hatchlings are nowhere to be seen, as they are sleeping deep in the ground. As soon as night falls, however, they are busy bustling around, exploring and searching for tidbits to eat. Although not very social creatures, these little ones enjoy being carried about in a dark pocket, especially if they are fed a treat or two. They get along best with gemhogs, who they will burrow and even occasionally dwell with.

If you look carefully enough, you can spot holes all around The Keep, sometimes in rather unlikely locations. These burrows are created and used by the sarvains. Their favorite spots to dig are around The Stream, where the moist soil makes it easy to create dens and food is readily available. There are plenty of grubs and roots for the sarvains to feast on, as well as ants, snails, and worms to make pleasing meals. It's an amusing sight to see one of these animals feed, as their tongues are very long and flexible. Like most companions, they are able to hunt for their own meals, and rely on their magi for very little. When left to their own devices, they busy themselves with expanding their mazes and are rather solitary. In the wild they live along the edges of deserts and near water, where the ground is easiest for digging and food most plentiful. They also possess the wonderful skills of being able to find lost items, valuable artifacts that have long been buried and forgotten. Once located, these treasures can usually be dug up quickly enough, and many lost items have been discovered with the aid of these creatures.